They can get away with this because the targeted individuals are discredited and because their claims are seen as out there. However, I can assure you that this torture/human experimentation is going on. The technology to do the remote testing is functional and in operation. The state of this technology is in a mature stage and all off the shelf. It is supposedly top secret as you can see from the Basic IDIQ statement of objectives (link below). The only way for them to do this kind of testing is to enlist unwilling subjects or use existing unwilling subjects who have never given consent for this testing.
They are keeping this a secret, because it is deemed a means of social control on dissidents and activists. If and when the public finds out that the entire country is wired, with DE weapons in cell phone towers all across the country, they will be outraged. But the people are not paying attention and the Government is literally getting away with murder.